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Springs and Work
2 Joules of work is needed to stretch a spring from its natural length of 30cm to a length of 42 centimeters. How much work is needed to stretch it from 35cm to 40cm?
Sorry, I know this is simple but I'm messing up somewhere because I'm not getting the correct answer of 25/24 or approx. 1.04 Joules
Any help is appreciated. Thanks. 
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Teacher/Engineer/Machinist - Team 696 Circuit Breakers, 2011 - Present
Mentor/Engineer/Machinist, Team 968 RAWC, 2007-2010
Technical Mentor, Team 696 Circuit Breakers, 2005-2007
Student Mechanical Leader and Driver, Team 696 Circuit Breakers, 2002-2004
Last edited by sanddrag : 16-05-2005 at 00:52.
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